The tarp won't come off this "technical study" Frontier for another ninety minutes, but there's no mistaking the Cummins diesel badge on the front fenders. Cummins reps milling around the stage eliminate any traces of doubt that Nissan is serious about being a serious player in the truck efficiency arms race.

We've known Nissan's been planning a Cummins for their next Titan for some time now, but up until today the future of the Frontier hasn't been advertised. Though Nissan's truck guy Fred Diaz has been saying "we're studying the possibility of diesel being in more of our products going forward."